package demo2;
import java.util.Scanner;

public class Test3 {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int n = in.nextInt();



    }

    public static int fibonacci(int n) {
        if(n == 0) {
            return 0;
        }
        if(n == 1) {
            return 1;
        }

        return fibonacci(n-1) + fibonacci(n-2);
    }
}
